2021
DOI: 10.1155/2021/9954127
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Experimental Study on Well Placement Optimization for Steam-Assisted Gravity Drainage to Enhance Recovery of Thin Layer Oil Sand Reservoirs

Abstract: SAGD (steam-assisted gravity drainage) technique is one of the most efficient thermal recovery technologies for exploiting Mackay River thin layer oil sand reservoirs. However, when making use of the traditional SAGD technique (the production and injection well are located on the same axis with the horizontal well spacing of 0 m), the steam chamber development is usually insufficient because of the high longitudinal sweep rate of steam, which seriously influences the SAGD performance for developing thin layer … Show more

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Cited by 6 publications
(3 citation statements)
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References 44 publications
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“…Steam is then supplied to the injection well under pressure, and the heated oil with light fractions under the effect of gravity descends into the horizon of the production wellbore. A schematic diagram of the implementation of SAGD technology is shown in Figure 8 [48,49]. Counter SAGD involves drilling out blocks from two well pads, which are separated from each other by an average of 1 km depending on the location of the horizontal sections of the wells.…”
Section: Basic In Situ Combustion Technologiesmentioning
confidence: 99%
“…Steam is then supplied to the injection well under pressure, and the heated oil with light fractions under the effect of gravity descends into the horizon of the production wellbore. A schematic diagram of the implementation of SAGD technology is shown in Figure 8 [48,49]. Counter SAGD involves drilling out blocks from two well pads, which are separated from each other by an average of 1 km depending on the location of the horizontal sections of the wells.…”
Section: Basic In Situ Combustion Technologiesmentioning
confidence: 99%
“…However, this does not imply that greater steam injection leads to better results, as excessive steam injection may result in steam breakthrough in production wells. Lei Tao et al [18] discovered that increasing the steam injection rate can result in an increase in oil production rate and a decrease in the oil-to-steam ratio (OSR).…”
Section: Introductionmentioning
confidence: 99%
“…In the search for a strong reduction in the injected water and the wasted energy, it is crucial to understand the main physical mechanisms and conditions that control the efficient production of condensates [10][11][12][13][14][15]. For instance, some numerical [12,13] and experimental [14,15] studies suggest that it is possible to control the well spacing, the well placement, or the injection temperature [13] in order to optimize the oil production of heavy oil reservoirs.…”
Section: Introductionmentioning
confidence: 99%